[Nook Color General] Blue6IX:
For the absolute wealth of information flowing through this board daily, this is the thread that got me to register. I'd like to add my results to the collective.

I opted to post the full readout, as that's probably better for the common good.

I have 4 MicroSD cards, 3 are HC 1 is not.

Sandisk MicroSDHC, Class 2, 16 Gig - Bestbuy (bought within last 3 months)

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CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo

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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 10.533 MB/s

Sequential Write : 3.096 MB/s

Random Read 512KB : 10.441 MB/s

Random Write 512KB : 2.375 MB/s

Random Read 4KB (QD=1) : 0.996 MB/s [ 243.1 IOPS]

Random Write 4KB (QD=1) : 0.325 MB/s [ 79.3 IOPS]

Random Read 4KB (QD=32) : 1.086 MB/s [ 265.2 IOPS]

Random Write 4KB (QD=32) : 0.350 MB/s [ 85.4 IOPS]

Test : 50 MB [F: 8.4% (9.7/115.8 MB)] (x5)

Date : 2011/05/20 7:53:07

OS : Windows XP Professional SP3 [5.1 Build 2600] (x86)

PNY MicroSDHC, Class 10, 8 Gig - BestBuy (bought within last 3 months)

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CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo

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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 16.451 MB/s

Sequential Write : 7.547 MB/s

Random Read 512KB : 16.392 MB/s

Random Write 512KB : 1.375 MB/s

Random Read 4KB (QD=1) : 2.935 MB/s [ 716.7 IOPS]

Random Write 4KB (QD=1) : 0.014 MB/s [ 3.4 IOPS]

Random Read 4KB (QD=32) : 3.141 MB/s [ 766.9 IOPS]

Random Write 4KB (QD=32) : 0.030 MB/s [ 7.4 IOPS]

Test : 50 MB [F: 8.4% (9.7/115.8 MB)] (x5)

Date : 2011/05/20 6:48:40

OS : Windows XP Professional SP3 [5.1 Build 2600] (x86)

Dane-Elec MicroSDHC , Class 4, 4 Gig - Target (bought within last 3 months)

(Made in Japan - Saw on the shelf cards in same packaging with either taiwan, china or japan printed on the card itself.)

(came with full-size sd-card adapter and a tiny usb adapter)

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CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo

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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 15.780 MB/s

Sequential Write : 9.270 MB/s

Random Read 512KB : 16.459 MB/s

Random Write 512KB : 1.765 MB/s

Random Read 4KB (QD=1) : 2.684 MB/s [ 655.2 IOPS]

Random Write 4KB (QD=1) : 0.017 MB/s [ 4.1 IOPS]

Random Read 4KB (QD=32) : 2.723 MB/s [ 664.7 IOPS]

Random Write 4KB (QD=32) : 0.037 MB/s [ 9.1 IOPS]

Test : 50 MB [F: 28.8% (1085.0/3771.6 MB)] (x5)

Date : 2011/05/20 7:06:01

OS : Windows XP Professional SP3 [5.1 Build 2600] (x86)

PNY MicroSD, Un-classed, 2 Gig - Circuit City (yeah, it's that old...)

(Printed "Made in Taiwan")

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CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo

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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 11.081 MB/s

Sequential Write : 5.971 MB/s

Random Read 512KB : 10.960 MB/s

Random Write 512KB : 1.098 MB/s

Random Read 4KB (QD=1) : 2.045 MB/s [ 499.3 IOPS]

Random Write 4KB (QD=1) : 0.010 MB/s [ 2.6 IOPS]

Random Read 4KB (QD=32) : 2.415 MB/s [ 589.6 IOPS]

Random Write 4KB (QD=32) : 0.027 MB/s [ 6.7 IOPS]

Test : 50 MB [F: 0.0% (0.1/1871.3 MB)] (x5)

Date : 2011/05/20 7:37:06

OS : Windows XP Professional SP3 [5.1 Build 2600] (x86)

I run the os from the SDcard, and have never overwritten the stock nook.

The Sandisk 16 Gig Class 2 card is my best one, and I knew that before the speed test.

-Runs Deeperblue's honeycomb preview stock well, and phiremod v6.1 using racks11479 dualboot phiremod/honeycomb.

Bonus points that it's my biggest one.

The PNY 8 Gig class 10 card I bought at a bestbuy thinking it would be faster then my Sandisk 16, but the PNY card feels like it's just

under

the threshold for running an OS from the SDcard.

I have to wait for stuff more often then not, and a lot of 'force close' issues that magically vanish using the Sandisk 16 with an identical configuration.

The Dane-Elec I knew wasn't going to be a good card, but I wasn't prepared for how maddeningly frustrating it was. I was fortunate that it was my very first experience with full android on the Nook. I knew it was bad, but didn't realize just how much.

Taught me out the gate the value of a faster card, and eventually led me to this thread. I bought it because the PNY 2 gig card I had laying around from who knows how long ago just came up short for the first image I was trying to burn. Needed more space and at just after 10 at night, options are limited.

Except for the 2 gig card, the other three have only ever been used with the nook and for direct pupose of running an android OS. They've been flashed a handful of times each with winimage, formatted in between.

I ran the benchmark test with the usb microsd adapter that came with the 4 gig card. 5/50 test, same for all.

Rebooted my pc in between each test, and the only thing going on was the test itself, I closed all my open programs first.

The 2 and 4 Gig cards were freshly formatted, the 8 and 16 Gig cards had the dualboot phiremod/honeycomb installed on them when I ran the test.

Between the stats of the 8 and 16 Gig cards, the 16 runs racks11479's phiremod image well, the 8 gig isn't good enough. For running an OS from the SDcard the threshold of pass/fail lies between these two cards.

My nook is updated to 1.2 and runs fine all on it's own too, in case that matters.

Don't think I missed anything, happy to add if so.